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doit_the_clown doit_the_clown
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7 years ago
A star that has an apparent magnitude of 0 (see Fig. 11-2, Comins and Kaufmann, Discovering the Universe, 7th Ed.)
A)   would be fainter than Spica (alpha Virginis), which has an apparent magnitude of +1.0.
B)   would be brighter than Deneb (alpha Cygni), which has an apparent magnitude of +1.2.
C)   would have infinite brightness, since 1/0 = infinity.
D)   would not be emitting any light, and therefore could not be seen from the Earth.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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